FQSFP SI Characterization Kit

SI test platform for characterizing FQSFP Series Twinax Cable Assemblies


As data rates increase, trace length on PCBs decrease. Samtec’s high-speed, flyover cable assemblies simplify PCB design and limit signal degradation in high data rate applications. The FQSFP SI Characterization Kit provides system designers and SI engineers an easy-to-use solution for testing FQSFP twinax flyover cable assemblies.

The FQSFP SI Characterization delivers a high-quality system with robust mechanical design. It can be used standalone for FQSFP cable assemblies. The modular design approach enables support of multiple FQSFP END 2 cable assembly and SI Characterization card options. Please contact Samtec’s technical experts at KitsAndBoards@samtec.com for additional information.


  • Compact form factor
  • One Flyover QSFP28 Cable Assembly (FQSFP-01-XX.X-L-PF-2)
  • Supports multiple FQSFP series cable length options
  • Routes high-speed differential pairs (8 total) from DCH series to high-precision RF connectors
  • Routes high-speed differential pairs (8 total) from FQSFP series to high-precision RF connectors
  • Supports multiple high-precision RF connector options (1.85 mm/2.4 mm/2.92 mm)
  • Optimized SI performance via Samtec Final Inch BOR PCB trace routing
  • Enable time domain measurements via direct connection to TDR/TDTs
  • Enable frequency domain measurements via direct connection to VNAs


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